]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 1f3ce1e) | patch
[media] videobuf_vm_{open,close} race fixes
authorAl Viro <viro@ZenIV.linux.org.uk>
Thu, 9 May 2013 18:03:33 +0000 (15:03 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Tue, 21 May 2013 11:56:56 +0000 (08:56 -0300)
commitd9c9975ba25ba02b7c0a224339347192a83c76e5
tree0cddab2680085f478cf5c5c5b168143de90e8b30tree | snapshot
parent1f3ce1edf0066aa6a7b5e0280e0ae7461a621168commit | diff
[media] videobuf_vm_{open,close} race fixes

just use videobuf_queue_lock(map->q) to protect map->count; vm_area_operations
->open() and ->close() are called just under vma->vm_mm->mmap_sem, which
doesn't help the drivers at all, since clonal VMAs are normally in different
address spaces...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/v4l2-core/videobuf-dma-contig.c diff | blob | history
drivers/media/v4l2-core/videobuf-dma-sg.c diff | blob | history
drivers/media/v4l2-core/videobuf-vmalloc.c diff | blob | history
Linux Kernel Source Tree.